projects/board-test/uart-test.c


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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */TEST = led-test short-test uart-test fmc-test fmc-perf fmc-probe rtc-test

all: $(TEST:=.elf)

%.elf: %.o $(BOARD_OBJS) $(LIBS)
	$(CC) $(CFLAGS) $^ -o $@ -T$(LDSCRIPT) -g -Wl,-Map=$*.map
	$(OBJCOPY) -O ihex $*.elf $*.hex
	$(OBJCOPY) -O binary $*.elf $*.bin
	$(OBJDUMP) -St $*.elf >$*.lst
	$(SIZE) $*.elf

clean:
	rm -f *.o
	rm -f *.elf
	rm -f *.hex
	rm -f *.bin
	rm -f *.map
	rm -f *.lst

s="p">;
    uint8_t rx = 0;
    uint8_t upper = 0;

    stm_init();

    while (1) {
	led_toggle(LED_GREEN);

	uart_send_char2(STM_UART_USER, tx + upper);
	uart_send_char2(STM_UART_MGMT, tx + upper);
	DELAY();

	if (uart_recv_char2(STM_UART_USER, &rx, 0) == HAL_OK ||
	    uart_recv_char2(STM_UART_MGMT, &rx, 0) == HAL_OK) {
	    led_toggle(LED_YELLOW);
	    if (rx == '\r') {
		upper = upper == 0 ? ('a' - 'A'):0;
	    }
	}

	if (tx++ == 'Z') {
	    /* linefeed after each alphabet */
	    uart_send_string2(STM_UART_USER, crlf);
	    uart_send_string2(STM_UART_MGMT, crlf);
	    tx = 'A';
	    led_toggle(LED_BLUE);
	}
    }
}